ZW20-12kV;630A Outdoor intelligent vacuum circuit breaker

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1 Rated voltage kV 12
2 Rated frequency Hz 50
3 Rated current A 630
4 Rated short-circuit breaking current kA 20
5 Rated making current peak kA 50
6 Rated dynamic stability current bee value kA 50
7 4s thermal stability current kA 20
8 Rated operating sequence   分 0.3s 合分 180s 合分
9 Rated energy storage motor voltage V AC220
10 Maximum/minimum energy storage motor voltage V AC242/187
11 Rated combined operating voltage V AC220
12 Maximum/minimum closing operating voltage V AC264/143
13 Rated opening operating voltage V AC220
14 Maximum/minimum opening operating voltage V AC264/143
15 Different period of closing ms ≤2
16 Different period of opening ms ≤2
17 Rated pressure of SF6 gas (gauge pressure) Mpa 0.01
18 Rated short-circuit current breaking times times 30
19 Mechanical life times 10000



ZW20 12F series outdoor high-voltage AC demarcation vacuum circuit breakers are high-voltage outdoor switchgear with rated voltage of 12KV and three-phase AC 50H z. They are mainly used to open and close the load current, overload current and short circuit of rural power grids, urban power grids and small power systems. Current. The overall structure of the product is a three-phase common box type, and the three-phase vacuum interrupter is placed in a metal box, with reliable voltage transformation performance and high insulation strength.
The operating mechanism of this series of products is a spring energy storage type, which is divided into two types: electric and manual. The circuit breaker complies with the regulations of GB1804, DL403, GB11022 and other standards,
No matter it is under normal use conditions or under fault conditions (especially open circuit conditions), as long as it is within the technical parameters of the circuit breaker, it can guarantee safety and reliability
It runs in the grid of the corresponding voltage level.


Use environmental conditions

Ambient temperature: -45℃-+40℃;
Altitude: not more than 1000m;
The wind speed is not more than 35m/s;
Relative temperature: daily average not greater than 95%, monthly average not greater than 90%;
Earthquake intensity: no more than 8 degrees;
There is no fire, explosion, severe pollution, chemical corrosion and severe vibration.


Shape and installation dimensions


Product model and meaning